Yahoo's Chris Moody on the comedian's pick:
Miller, who mentioned his support for the Cain campaign on his national radio show, will headline a fundraiser for Cain in Los Angeles and has donated to the campaign, a Cain spokeswoman confirmed.
.... Miller has been supportive of Cain for months--his website directed readers to the Georgia businessman's campaign site in July--but had not formally endorsed him until today.
It turns out that Miller almost didn't have a chance to formally endorse Cain, since the Georgia talk show host said today that he nearly quit twice before winning Florida's weekend straw poll.